How did Pericles justify the use of Delian League funds to beautify Athens?
a. he said Delian League members could travel for free to Athens, which would keep Delian League members happy
b. he said Sparta would surrender if Athens was glorified, which would keep Delian League members safe.
c. he said the beautification of Athens would increase the amount of tourism to Athens, and that he would use profits from that to reimburse the Delian League.
d. he said Athens should look the part of the intimidating city it was, so as to deter invaders from the Mediterranean, which would keep Delian League members safe.